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SY88289ALMGTR

Description
3.3V, 3.2Gbps CML Low-Power Limiting Post Amplifier with TTL Loss-of-Signal
CategoryWireless rf/communication    Telecom circuit   
File Size275KB,9 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
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SY88289ALMGTR Overview

3.3V, 3.2Gbps CML Low-Power Limiting Post Amplifier with TTL Loss-of-Signal

SY88289ALMGTR Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMicrochip
Parts packaging codeDFN
package instructionHVQCCN, LCC16,.12SQ,20
Contacts16
Manufacturer packaging codeMLF
Reach Compliance Codecompli
appSONET;SDH
JESD-30 codeS-XQCC-N16
JESD-609 codee4
length3 mm
Humidity sensitivity level2
Number of functions1
Number of terminals16
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialUNSPECIFIED
encapsulated codeHVQCCN
Encapsulate equivalent codeLCC16,.12SQ,20
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)260
power supply3.3 V
Certification statusNot Qualified
Maximum seat height0.9 mm
Maximum slew rate0.065 mA
Nominal supply voltage3.3 V
surface mountYES
Telecom integrated circuit typesATM/SONET/SDH SUPPORT CIRCUIT
Temperature levelINDUSTRIAL
Terminal surfaceNickel/Palladium/Gold (Ni/Pd/Au)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperature40
width3 mm
SY88289AL
3.3V, 3.2Gbps CML Low-Power Limiting
Post Amplifier with TTL Loss-of-Signal
General Description
The SY88289AL low-power limiting post amplifier is
designed for use in fiber-optic receivers. The device
connects to typical transimpedance amplifiers (TIAs).
The linear signal output from TIAs can contain
significant amounts of noise and may vary in amplitude
over time. The SY88289AL quantizes these signals and
outputs CML-level waveforms.
The SY88289AL operates from a single +3.3V power
o
o
supply, over temperatures ranging from –40 C to +85 C.
With its wide bandwidth and high gain, signals with data
rates up to 3.2Gbps, and as small as 10mV
P-P
, can be
amplified to drive devices with CML inputs or AC-
coupled CML/PECL inputs.
The SY88289AL generates a loss-of-signal (LOS) open-
collector TTL output. A programmable loss-of-signal
level-set pin (LOS
LVL
) sets the sensitivity of the input
amplitude detection. LOS asserts high if the input
amplitude falls below the threshold set by LOS
LVL
and
de-asserts low otherwise. The enable bar input (/EN)
de-asserts the true output signal without removing the
input signal. The LOS output can be fed back to the /EN
input to maintain output stability under a loss-of-signal
condition. Typically, 3.5dB LOS hysteresis is provided to
prevent chattering.
All support documentation can be found on Micrel’s web
site at
www.micrel.com.
Features
Single 3.3V power supply
125Mbps to 3.2Gbps operation
Low-noise CML data outputs
Chatter-free open-collector TTL Loss-of-signal (LOS)
output with internal 4.75kΩ
pull-up
resistor
TTL /EN input
Internal 50Ω
input termination
Programmable LOS level set (LOS
LVL
)
Ideal for multi-rate applications
Available in a tiny 3mmx3mm 16-pin QFN package
APON, BPON, EPON, GEPON, and GPON
Gigabit Ethernet
Fibre Channel
SONET/SDH:OC-3/12/24/48 – STM 1/4/8/16
High-gain line driver and line receiver
Applications
Markets
Optical transceivers
Datacom/telecom
Typical Application
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
February 2007
M9999-021207-B
hbwhelp@micrel.com
or (408) 955-1690

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